Similarity and Right Triangles Review

To find the height of a very tall pine tree, you place a mirror on the ground and stand where you can see the top of the pine tree.  How tall is the tree?

• 144 feet

• 72 feet

• 36 feet

If the triangles are similar, find x

• 90

• 60

• 30

• 15

Determine whether the triangles are similar.

• SSS~

• AA~

• SAS~

• not similar

State if the triangles in each pair are similar. If so, state how you know they are similar.

• Yes, AA Similarity

• Yes, SSS Similarity

• Yes, SAS Similarity

• Not Similar

Find the missing side. (Calculators are allowed)

• 48

• 108

• 83.6

• 72

Find h

• 35.60

• 35.00

• 35.71

• 61.03

Do the lengths form a right triangle? 6, 8, 10

• yes

• no

Which trigonometric ratio should you use?

• Tangent Ratio

• Sine Ratio

• Cosine Ratio

• Any ratio

What is the correct equation to solve for x ?

• tan( 46 ) = 17/x

• sin ( 46 ) = x/17

• tan (46 ) = x/17

• cos (46) = x/17

Find the measure of the indicated angle (?) round to the nearest tenth.

• 9.4

• 55.2

• 20.15

• 19.4